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DC Generators

DC Generators
In case of dc machines, mechanical losses are primary function of

Current
None of the listed here
Voltage
Speed

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DC Generators
Permeance is the reciprocal of

Reluctance
Flux density
Resistance
Ampere turns

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DC Generators
The field structure of a dc machine uses ______

Both salient and non salient pole arrangements
None of the listed here
None salient pole arrangements
Salient pole arrangements

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DC Generators
The armature conductors of a 6 pole, lap wound dc generator are divided into

3 parallel paths
4 parallel paths
2 parallel paths
6 parallel paths

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DC Generators
The overall efficiency of a dc generator is maximum when its variable loss is equal to

Iron loss
Stray loss
Mechanical loss
Constant loss

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DC Generators
In D.C. generators, the brushes on commutator remain in contact with conductors which

Are farthest from the poles
Lie under North Pole
Lie under South Pole
Lie under interpolar region

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